URGENT - coating steel structure in marine enviroment
URGENT - coating steel structure in marine enviroment
(OP)
We need to protect a steel structure of approx 5m high that takes a load of 22T and is in a marine enviroment.
Hot dip galvanising seems to be the classic solution, but considering the size of the structure this causes some problems with the sub-contactors our client has approved(!!)
Is there a paint based process that can be used w/o baking that can produce a similiar level of protection.
Many thanks for your help
Hugh
Hot dip galvanising seems to be the classic solution, but considering the size of the structure this causes some problems with the sub-contactors our client has approved(!!)
Is there a paint based process that can be used w/o baking that can produce a similiar level of protection.
Many thanks for your help
Hugh
RE: URGENT - coating steel structure in marine enviroment
RE: URGENT - coating steel structure in marine enviroment
The key is to have the steel fabricator apply the paint system in the shop. The fabricators usually have a favorite paint supplier to work with. As long as this supplier is a reputable company (who also stands behind the application, so the fabricator and paint maker don't point fingers if it fails), the likely system would be an organic zinc primer (4 - 5 mils DFT) with a high-build urethane topcoat (4 - 5 mils DFT) (epoxies are good too but tend to chalk over time).
Some touch up after erection will improve the chances of a 15 year life, which is reasonable expectation for this system.
RE: URGENT - coating steel structure in marine enviroment
It is actually a very high zinc content in the dry film paint, it actually looks like Galvanizing.
RE: URGENT - coating steel structure in marine enviroment